期刊
IEEE TRANSACTIONS ON ENERGY CONVERSION
卷 38, 期 1, 页码 64-74出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TEC.2022.3187419
关键词
Voltage control; Rectifiers; Inverters; Switches; Modulation; Voltage; Topology; Quasi-Z-source network; indirect matrix converter; three-level voltage modulation; AC; AC converter; open-ended windings; three-phase induction motor; motor speed control; common-mode voltage; phase voltage harmonic content; voltage gain; buck-boost operation; ride-through capability
In this paper, a novel variable-voltage, variable-frequency, dual, three-level, quasi-Z-source, indirect matrix converter topology is proposed, including a detailed description of a modulation method and a control strategy for three-phase motors with open-ended windings. The proposed power drive system supports bidirectional power flow and has a combined control of DC-link voltage and output AC voltage frequency. The experimentally validation on a 4-kW power drive system shows that the proposed system can double the voltage output gain and reduces common-mode component, low-order harmonic content, peak values, and dv/dt of the motor phase voltage, leading to various advantages including lower winding insulation voltage stress, lower harmonic losses in the motor, and ride-through capability over voltage sags in the mains.
In this paper, a novel variable-voltage, variable-frequency, dual, three-level, quasi-Z-source, indirect matrix converter topology is proposed, including a detailed description of a modulation method and a control strategy for three-phase motors with open-ended windings. The proposed power drive system (PDS) supports bidirectional power flow and has a combined control of DC-link voltage and output AC voltage frequency. Experimentally validation was performed on a 4-kW PDS. For a given supply voltage amplitude and the same power switch voltage rating in the DC/AC converter, the proposed PDS can double the voltage output gain, thus being an interesting solution for high-power applications with motors designed for higher voltages. The proposed PDS topology, modulation method and motor control strategy can reduce the common-mode component, low-order harmonic content, peak values and dv/dt of the motor phase voltage, ultimately leading to lower winding insulation voltage stress at low-speed, low-voltage operation, lower harmonic losses in the motor, and ride-through capability over voltage sags in the mains, which are important advantages.
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